Classification / Names
Common names from other countries
Main reference
Size / Weight / Age
Max length : 800 cm TL male/unsexed; (Ref. 59043); common length : 215 cm TL male/unsexed; (Ref. 3397); max. published weight: 3.2 t (Ref. 59043); max. reported age: 118 years (Ref. 47437)
Length at first maturity
Lm ?, range 200 - ? cm
Environment
Marine; freshwater; brackish; pelagic; anadromous (Ref. 51243); depth range 70 - 180 m
Climate / Range
Temperate; 10°C - 20°C (Ref. 2059), preferred 16°C (Ref. 107945); 57°N - 35°N, 17°E - 60°E
Distribution
Eurasia: Caspian, Black, Azov and Adriatic Sea basins. Considered critically endangered (Ref. 59043). Appendix III of the Bern Convention (protected fauna). International trade restricted (CITES II, since 1.4.98; CMS Appendix II).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Dorsal
spines
(total): 0;
Dorsal
soft rays
(total): 62-73;
Anal
spines: 0;
Anal
soft rays: 28 - 41. Snout moderate and pointed, turning slightly upward. Lower lip not continuous, interrupted at center. Barbels oval or flat, leaf-like posteriorly, reaching almost to mouth. Five rows of scutes, dorsal 11-14 (first one smallest), lateral 41-52 on each side, ventral 9-11 on each side. Back ash-grey or greenish, flanks lighter, belly white.
IUCN Red List Status (Ref. 115185)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquaculture: commercial; aquarium: public aquariums
Tools
Special reports
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Internet sources
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
4.4 ±0.3 se; Based on diet studies.
Resilience
Very Low, minimum population doubling time more than 14 years (K=0.1; tm=13-22; tmax=100; Fec=360,000)
Vulnerability
Very high vulnerability (89 of 100)
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